Question on disabling the VRO on 1989 Johnson 110HP

[jgranax]

I am in the middle of disabling my VRO on a 1989 Johnson 110HP. My question is, the vacuum line from the VRO to the engine, does that stay connected and in tact? What is the function of that vacuum line?

Thanks,


JG

 

[jgranax]

Re: Question on disabling the VRO on 1989 Johnson 110HP

Ok, I believe it's the pulse limiter. Any thoughts on this? Function?

Thanks...

 

[ezeke]

Re: Question on disabling the VRO on 1989 Johnson 110HP

The connection is for the pulse to drive the pump. The pulse limiter is a check valve to keep a backfire from destroying the pump. it only works when the pressure is too high but is necessary to protect the pump. Your pulse limiter should be made of aluminum and should be gold and blue.

Be sure that you keep the oil connected long enough to allow your premix to get all the way to the engine or you will be running without oil.

 

[jgranax]

Re: Question on disabling the VRO on 1989 Johnson 110HP

Thanks for the clarification. However, I have flushed everything out since the boat sat for 2 years with stale fuel in the lines. I also cleaned out the fuel tank. I will mix in a 3 gallon container for now, just to get the motor started and warm enough for a compression check. I will be using bunny ears for this job. Will this due? Should I submerge into a large plastic garbage can (50 gal) or will bunny ears due just to run a few minutes at idle?

Thanks again....

 

[tashasdaddy]

Re: Question on disabling the VRO on 1989 Johnson 110HP

ok you unplug the wire on the oil tank, and the vro pump. blocked the oil line coming into the motor, now connect your tank, remove one to the fuel line going to the carb, and prime with the new fuel till you get gas, this ensures you have the lubricated gas at the carb. you can run forever of Muffs, but not above 1500 rpms. don't walk away from it. many motors have been ruined, because they fall off, the dog grabs them, the kids , etc.

 

[ezeke]

Re: Question on disabling the VRO on 1989 Johnson 110HP

Either way, muffs or tank, just let the water have a chance to get in the water pump before you turn it over.

If you open the drains on the carburetor float bowls and then squeeze the primer bulb a few times, you should be able to get the premix all the way through the system. Put an old towel under the carbs to catch the fuel.

 

[jgranax]

Re: Question on disabling the VRO on 1989 Johnson 110HP

You guys are awsome. Thanks for the input. Oops, one more question, should I give the cylinders a shot of Deep Creep prior to starting for some lubrication? Just a thought? They may be dry after a couple of years. I was thinking to remove all plugs, blow some comressed air in each to clear out any debri, than a quick spray of deep creep for some light lubrication, blow in there once more, clean and gap plugs and install. I have new plugs available, but only after all checks are complete. I just need to warm this up to check compression. Hopefully I'm on the track I also have a manual if needed.

Thanks...

 

[ezeke]

Re: Question on disabling the VRO on 1989 Johnson 110HP

Deep Creep is definitely not a lubricant. You can use a little oil, fogging oil is good.

 

[redfury]

Re: Question on disabling the VRO on 1989 Johnson 110HP

Can't imagine there being any debris in the cylinders...if there was, I'd be a little worried.

Deep creep is more for decarboning the engine. I'd second the fogging oil idea.

 

[ziemann]

Re: Question on disabling the VRO on 1989 Johnson 110HP

Fogging oil is best because it is in a aerosol form and can be sprayed into each cylinder to provide better coverage than simply dribbling some 2 stroke oil in there. These guys are giving you good information. Don't be surprised if your carbs need a bit more cleaning due to a clogged oriface somewhere after sitting that long....

 

[tashasdaddy]

Re: Question on disabling the VRO on 1989 Johnson 110HP

after you get it running correctly do a decarb, it's like an enema, for the motor.

Decarb, take a can of seafoam put 3/4 of it in the gas tank, with only 1 gallon of premixed gas. put the rest in a spray bottle. start the engine, and let it come up to temperature. then remove plugs, and them some real good shot of seafoam into the cylinders, replace plugs, let sit 15 minutes. restart, and spray the rest of the seafoam into the carbs, so the the motor almost stalls, wait and repeat until the seafoam is gone.then take for a wide open spin. then put in new plugs, ad premixed gas to the tank, and take it for a wide open throttle spin. it is going to smoke like a house on fire, during this process.

afterwards compression.recheck

 

[samo_ott]

Re: Question on disabling the VRO on 1989 Johnson 110HP

Hmmm, I'm pretty sure Deep Creep says it can be used as fogging oil... I'll have to go check a can.

 

[ezeke]

Re: Question on disabling the VRO on 1989 Johnson 110HP

I'm sure the Deep Creep can says it can be used as a fogging oil as well.

I don't think it's oil ingredient, pale oil, is recommended for running a dry engine. Regular aerosol fogging oil is strictly a lubricant and is easy to use.